The story of the six-mile waterway linking Uptown New Orleans and Lake Pontchartrain - built by Irish canal diggers beginning in December 1831 on WYES. Repeats Sat., Nov. 18 at 5pm; Sun., Nov. 19, 10am; Wed., Nov 22, 10pm. Pontchartrain Conservancy's Lighthouse Exhibits & Programs Manager Kate Tannian makes an appearance.